Molding-machine



(No Model.) 5 Sheets-Sheet 1. G. L. GOEHRING.

. MOLDING MAGHINB. No. 394,764. Patented Dec. 18, 1888.

1W8 mm WITNESSES (No Mo del.) 5 Sheets-Sheet 2. O. L. GOEHRING.

MOLDING MACHINE.

No. 394,764. Patented Dec. 18, 1888.

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(No Model.) 5 Sheets-Sheet 3. O. L. GOEHRING.

MOLDING MAGHINE.

Patented Dec. 18, 1888.

(No Modl.) 5 Sheets-Sheet 5. G. L. GO-EHRING. MOLDING MACHINE.

No. 394,764. Patented Dec. 18, 1888.

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the reciprocating and oscillating movements NlTED STATES PATENT OFFICE.

CHARLES L. GOEIIRING, OF ALLEGHENY, PENNSYLVANIA.

MOLDING-MACHINE.

SPECIFICATION forming'part of Letters Patent 170.394,?64, dated December 18, 1888.

Application filed January 7, 1888.

To all whom it may concern.-

Be it known that I, CHARLES L. GOEHRING, of Allegheny, in the county of Allegheny and State of Permsylvania, have invented certain new and useful Improvements in Molding- Machines; and I do hereby declare the following to be a full clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the figures and letters of reference marked thereon.

This invention relates to a new and improved arrangement and construction of mechanism for supporting and automatically controlling the movements of rotary cutters such as are employed in moldirig-machines, and is more especially designed for use in connection with or as an accessory to a system such as described in anotherapplication, Serial No. 260,097; and it consists, principally, in the employment of a supporting-head for the rotating arbor, pivotally secured to a movable frame, the pivotal point of attachment being located above or in the line of movement of the material and centrally of the cutter.

It also comprises mechanism for effecting of the arbor, either separately or simultaneously, and for controlling the longitudinal and angular movements of the cutters, all as hereinafter more fully explained.

In the accompanying drawings, Figure 1 is a top plan view, Fig. 2 a longitudinal vertical section, and Fig. 3 an end view, of a mechanism embodying my improvements. l and 5 are end and top views, respectively, of the adjustable pivotal connection between the arborframe and its movable support. Fig. 6 is a side elevation, partly in section, of driving mechanism suitable for accommodating the movements of the arbor.

Similar letters of reference in the several figures indicate the same parts.

The mechanism illustrated is especially designed and intended to form part of a system such as described in my application, Serial N 0. 260,097, its special function as applied to said system being the formation of the ornamental moldings or designs upon or in the surface of the material, the latter being fed forward or advanced continuously and in a straight line beneath the cutters by suitable $eria1 No. 260,098. (No model.)

feeding mechanism, the feeding mechanism and actuating devices connected with the cutting mechanism being geared together or to a prime mover in a manner to effect the simultaneous and proportional movements as described in the application referred to. As, however, the subject of the present application may be employed to advantage in other situations and in connection with various other forms and constructions of cutting and feeding devices, the usual accessoriessuch as frame, table, presser-bars, guides, &c. are not illustrated in the drawings.

The preferred form of feeding mechanism is similar to that described in my said application, Serial No. 260,097, in which the material is passed between one or more pairs of feeding-rolls rotating at equal peripheral velocities,with gearing connecting said rolls and the actuating devices of the cutting mechanism in a manner to insure a unitary action, the rate of feed being at all times proportional to the movements imparted to the cutting devices.

Inasmuch as the feeding devices for advancing the material are well known and form no part of, though accessory to, my present invention, they are not shown herein, as they can readily be supplied by any skilled mechanic familiar with woodworking and similar machinery.

At A, Fig. 2, is shown a portion of the main frame, forming a vertical guide or way for a reciprocating carriage, B, the latter provided with bearings or anti-friction rolls b, resting upon eccentrics or pattern-cams b. This carriage B, which is reciprocated vertically by and in conformity to the outline of the cams b, is constructed in two sections, the one, B, movable vertically in guides upon the other, B This movement is for the purpose of adjustment merely, a screw, 11 operating in lugs 12 on the two sections, serving to lengthen or shorten the carriage, thereby increasing or diminishing the distance between the shaft 1), carrying the actuating cam or cams b, and the cutter-head E, carried by the upper section, B.

It is advisable that some means or device should be provided in addition to the screw 19 to preserve the two sections in adj ustmentsuch, for example, as a clamping-screw, b

passed through elongated openings or slots 1)" in one section and threaded into the other section, said bolt being loosened to permit and tightened to preserve the adjustment of the two sections.

The upper section, B, of the carriage B is formed or provided with a platen or transverse top, 1:3, slotted, as at Z1 to a( -commodate the driving-belt of the cutters.

Supported in ways (1 upon the platen 1-3 is a slide, C, constructed in two sections for the purposes of adjustment, the rear section, 0, carrying a bearing or roller, c, for engaging an eccentric or pattern eam, C", while the front section, supports the arbor-slide l), the two sections U C being connected by an :uljusting-screw, c and held retracted against the pattern-cam by a weight or other yieldin pressure device, \V. The shaft c, earrying cam C is ctmnected by gears c with the shaft 1), carrying cams I), whereby they are caused to move or rotate in unison and at the same or diflferent speeds, according to the relative proportions of the gears, while, the movements of the carriage B and slide 0, as affected by said cams, bein at right angles to each other, the resulting motion of the slide 0 is a mean between that of the two, and can be varied at will by changing the eonnecting-gearing or the forms of the cams, or both.

The EllbOlFSlldO D, provided with bearings (Z for the arbor d, is pivotally connected at the forward end to the slide (7, its rear end being provided with an arc-shaped plate or extension, (7?, resting upon a guide-plate, c, on slide or otherwise supported so as to prevent vertical movement.

The pivotal point of attachment of the arl.)or-slide to the sustaining plate or slide should be located at or about centrally of the cutting-face of the bit or bits and above the material as it is advanced by the feeding mechanism; and to this end the pivot-bolt l) is located in the overhanging or forward end of slide 0. As, however, the cutters employed, and which are to be fastened to the cutter-head 1* in the usual manner, are of different widths and occupy different positions on the eutter-hczul, it is desirable that provision should be made for adj usting the pivotal center relatively to the material. and the width and position of the bits; and to this end, in addition to making the slide (1 adjustable in length, whereby the arbor and cutting-head may be moved or adjusted longitudinally, I provide fora separate adjustment of the arbor-slide upon its support, as by forming in the forward end of slide 1) an elongated slot, (7, for the reception and aceonunodation of the pivot-bolt D, whereby by loosening the nut on said bolt the slide 1) can be adjusted longitudinally and independentlyot' the adjustment of its sup iort-ing-slide C. Thus by forming the supporting slide or carriage C in two sections the pivot D can be adjusted transversely to the direction of movement of the material, and by the provision made for adjusting the arl )or-slidc upon said pivot the eutter-lua'ul or cutters can be placed centrally of the pivot.

The variety of movements that can be imparted to the (ail'ter-lnmd by the means described is infinite. The cams h (1 can be of any desired pattern and be caused to operate separately, successively, or simuli'aneously. 'lhey may be driven at the same or different speeds relatively to each other and to the progressive movement or feed of the material, each change in the shape of the cams, the relative speed of the cams and fetaling devices, and the relative arrangementor setting of the aims effecting a mirrcsponding vari ation or change in the figure as traced by a point on the cutter-head act ing upon the material passing beneath it, and the ligures pro duced can be further modilied by changes in the form of the cutling-edgesoi' the bits borne by the rotating cutter-head.

The motions of the cutiter-head. to which reference has been made are executed in lines parallel with the axis of the arbor and in a plane intersect ing the line of feed at an angle thereto; but, as is obvious, while the movements of the cutter-head toward and from the material can readily be pm-fornn-ad without interference, the same is not true as to the movements in a line transverse to the moving surface of the material, more especially where the cutters are provided with angular or curved bits designed to prod uce shoulders, for in such case the cutters would not, duringtheir motion across the face of the plank, be presented squarely to the line of cut, but at an angle thereto. To overcome this defect and provide for the proper presentation of the cutter to the lineoli motionthat is to say,to a line which is proportional to or a mean between the progressive movement or feed of the material and the transvm'se movement of the cuti er-hcz'ul-l mount the arbor-slide upon a pivot, as described,said pivotal point of attachment being prel'ta'ably located in a plane intersecting the longitudinal eenterof the cutter or cutters, and cause said arbor-slhleio oscillate about said pivotal point of support. ()nc mode of acmmplishing this is shown in the drawings, wherein. l! re n-esents a bell-crank or oi her form of lever pivoted upon the movable frame or carriage, as at f, one end of said lever bearingagainst the side of the arlmr-slide in-rear ot' the pivot I), (a weight, W", or other yielding dtwice being applied to hold said slide against the lever,) while the opposite end of the lever rests in contact with a pattern-mm, (1. The arms ol. the lever 1! are made adjustable to accommodate the adjustment of slides (l and D. By

giving to the arl)or-suppo'rt an oscillating motion about its pivotal point of su iport, a new element or factor is introduced to influence the series of possible combinations.

In illustrating an embodiment of the principle of -my invention 1 have select ed one of the simplest forms of apparatus, the movable carriages or supports being guided-in straight lines at right angles, while the pattern-cams shown are symmetrical figures; but it is obvious that the mechanism is susceptible of variations and modifications in form and arrangement, and that pattern-cams of any suitable configuration may be employed. So, too, the gearing for transmitting motion from one shaft to theother is of the simplest character and can be modified in form, proportion, and extent to suit the exigencies of the occasion.

Any suitable form of driving mechanism competent to accommodate thevarious movements and adjustments of the arbor may be employed for driving the cutter-head while the latter is being reciprocated. In Fig. 6 I have illustrated one form of mechanism of this character, the same consisting of a yoke or frame, 1), movable vertically in guides 13 and held elevated by a yielding tension device, such as a weight, p and lever p The yoke 13 is provided with bearings for a shaft, 9*, held parallel with and above slide 0, said shaft carrying a wide parallel-faced pulley,

o and a crown or convex mile 7 J. The l 7 pulley p on the arbor is crowned, and belt p encircling pulleys p and j), is caused to traverse the wide pulley p as the slide reciprocates. The drivii'ig-pulley (shown in dotted lines) is carried by a shaft to one side of shaft 29 and a belt connects said driving-pulley and pulley p.

The vertical and lateral movements of the arbor are compensated for by the vertical play rials referred to herein, and to which this invention relates, is claimed in another application, Serial No. 282,590.

Having thus described my invention, what I claim as new is 1. In a mechanism such as described, the combination of the arbor-frame pivotally secured to a reciprocating slide or frame, and a rotating pattt-irn-canr for controlling the reciprocatory movements of said slide, substantially as described.

2. In combination with a reciprocatingslide controlled in its movements by a patterncam, an arbor-frame pivotally connected to said slide at a point opposite the material, and a cutter-head mounted 011 the arbor between said pivot and material to be operated upon, substantially as described.

In combination with a slide reciprocated across the line of feed by a pattern-cam, an arbor-supporting frame pivotally connected to said first-named slide on a line at right angles to but intersecting the material fed beneath the cutter-head, a cutter-head mounted in the arbor-supporting frame between its pivotal point of support and the material operated upon, and actuating devices operating to oscillate the arbor-frame as its support is reciprocated, substantially as described.

4. In combination with a reciprocating slide formed in two sections adj ustably connected, a pattern-cam operating upon one of said sections to give motion to the slide, and an arborframe pivotally attached to the other section of the slide, with devices for oscillating said arbor-frame, substantially as described.

5. In combination with a reciprocating slide formed in two sections adjustably connected, and actuating devices conn eeted to one of said sections for reciprocating the slide, and an arbor-frame pivotally connected to the other section of the slide and carrying a driving-pulley and cutter-head, with devices for adjusting the arbor-frame relatively to its pivot, substantially as described.

6. In combination with the reciprocating slide and an actuating-cam therefor, an arbor and cutter-head mounted in a frame, the latter pi votally and adj ustabl y connected to said reciprocatin slide on a line transverse to the axis of the cutter-head and in. a plane intersecting the cutters and the material operated on, with mechanism for oscillatingsaid arborframe, substantially as described.

7. In combination with two slides, the one movable in guides and the other upon and transversely to the line of movement of the first-named slide, cams for reciprocating said slides, an arbor-frame pivotally attached to the second slide, a cutter-head mounted upon said arbor, and devices for oscillating said arbor-frame while the latter reciprocates, substantially as described.

8. In combination with a table or support for the material, a slide reciprocated transversely of the table, and an arbor-frame pivotally attached to said slide and carrying an arbor and cutter-head projected across the face of the material, a vertically-1novable carriage supporting said slide and arbor-frame,

substantially as described,whereby as the cutter-head revolves and oscillates it is moved both laterally and vertically with reference to the material sup orted upon the table.

9. In combination with a reciprocating carriage and actuating-cams therefor, a trans- -versely-reciprocatin slide mounted upon said carriage, and an actuating-cam therefor, and an oscillating arbor-frame pivotally attached to said slide on an axis transverse to but intersecting the line of feed of the material to be operated upon, and a cutter-head supported upon the arbor-frame and beneath the pivotal point of attachment, substantially as de scribed.

10. In a machine such as described, and in combination with the carriage, the transversely-movable slide mounted thereon, and the arbor-frame supported by said slide, independent actuating-cams for said carriage and slide, and gearing connecting the saidcams, substantially as described.

11. In combination with devices supporting the cutter-head, the vertically-reciprocating carriage formed in two sections adjustably connected together, the cutter head-supporting devices being mounted upon the upper section and a pattern-cam engaging the lower section, substantially as described.

12. In combination with two shafts rotating in unison with each other, cams secured to each shaft, two slides, the one supported upon the other and each actuated independently by one of the Rams, and an arbor-frame, arbor, and cutter-head pivotally supported upon the slide, which being mounted. upon the companion slide pal-takes of the motions imparted by both cams, substantially as described.

3. The combination, with a slide reciprocating in ways transversely of the direction in which the material is fed, and with its front end overhanging the work-support, of an arbort'rame pivotal] y attached to the overhanging portion of the slide and carrying a cutterhead in line with the pivot, with a driving mechanism common to the slide and arborframe for reciprocating the former and simultaneously oscillating the latter, substantially as described.

ll. In combination with a slide, (J, supported in ways and adjustable in height, actuating devices for reciprocatingsaid slide above and transversely to the line in which the material is fed, an arbor-frame supported longitudin ally of the slide and carrying the cutter-head, and a pivot-bolt uniting the arbor-frame and slide, said bolt being located above the cut ter-head and made adjustable longitudinally of the a1-b(n'-frame,substantially as described.

15. In (annbination with the reciprocating slide C and the actuating devices therefor, the oscillating arbor-frame pivotally attached to said slide on an axis intersecting the cutterhead and actuating devices for oscillating said a-rlnmframe as its supportingslide is reciprocated, substantially as described.

16. In combination with the reciprocating slide 0, the arbor-frame adjustable longitudinally of the slide and connected thereto by a transverse pivot, the latter located opposite the cutter-head and in a plane intersecting the line of feed of the material, substantially as described.

17. In combination with the vertical carriage, adj nstable in length, and the actuatingcams t'or reciprocal:ing said carriage, the slide 0, also adjustable in length and supported to reciprocate in ways on the said carriage and in a direction transversely to the movement of the latter, and the arbor-frame carrying the arbor and cutter-head, the whole pivotally connected to the slide and oscillating about a center, which latter intersects the cutter and the material as fed beneath the latter, substantially as described.

18. In a machine such as described, wherein the frame or slide upon which the cutting mechanism is mounted is moved transversely to the line of feed of the material by two sets of actuating devices operati n simultaneously but in different planes, and in combination with said movable slide or frame, an arborframe supporting the rotating arbor and cutter-head. of the cutting mechanism, and a transverse pivotal connection forming the center of oscillation of the arbor-frame and connecting the latter to the movable supporting-slide, substantially as described.

19. In a machine of the characterherein described, the combination, with the work support or table, over which the material to be operated upon is fed, a frame or slide reciprocated in a line transverse to said Work-support, an arbor-frame connected to said reciprocating frame and oscillating about an axis or center transverse to the line of movement of said reciprocating frame, an arbor carrying a cutter-head mounted upon said arborframe with the cutters or bits projected in line with and intersecting the prolongation of the axis about which said arbor-frame oscillates, and devices for reciprocating the first-mentioned frame or support and oscillating the arbor-fran'le while the cutter-head is rotating, substantially as described, whereby the cutter-head is carried across the face of the material and oscillated about an axis intersecting the cutters and the material, as set forth.

20. In a machine substantially such as described, the combination, with the Wor c support or table, of a frame or slide mounted to reciprocate in a line transverse to the table, an arbor-frame attached to said slide by a pivotal connection whose axis is transverse to the line of movement of the slide, and an arbor and cutter-head mounted in the arbor-frame and projected across the work-support, the cutter standing above the face of the material, with devices for reciprocating the slide and oscillating the arbor-frame to produce an oscillatory reciprocatingmotion of the cutterhead across the face of the material as the latter fed beneath, substal'itially as de scribed.

CHAS. Ii. GOEIIRING.

\Vitnesses: 7

MELVILLE CHURCH, THOMAS DURANT. 

